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Editorial Team
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Asked: 2026-05-15T03:28:36+00:00

A bunch of my JavaScript code is in an external file called helpers.js. Inside

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A bunch of my JavaScript code is in an external file called helpers.js. Inside the HTML that calls this JavaScript code I find myself in need of knowing if a certain function from helpers.js has been called.

I have attempted to create a global variable by defining:

var myFunctionTag = true;

In global scope both in my HTML code and in helpers.js.

Heres what my html code looks like:

<html>
...
<script type='text/javascript' src='js/helpers.js'></script>    
...
<script>
  var myFunctionTag = false;
  ...
  //I try to use myFunctionTag here but it is always false, even though it has been se t to 'true' in helpers.js
</script>

Is what I am trying to do even feasible?

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1 Answer

  1. Editorial Team

    You need to declare the variable before you include the helpers.js file. Simply create a script tag above the include for helpers.js and define it there.

    <script type='text/javascript' > 
  var myFunctionTag = false; 
</script>
<script type='text/javascript' src='js/helpers.js'></script>     
... 
<script type='text/javascript' > 
  // rest of your code, which may depend on helpers.js
</script>
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